Highland House Roof (Composite)

Taken all the way down to base materials, one Highland House Roof (Composite) is 3 crafting steps deep and needs 7 intermediates — Mortar ×15, Steel Joint Plate ×15, Cut Stone ×10 and 4 others — which resolve to 9 distinct raw materials totalling 215 units, plus 213 crystals.

That bill outweighs 13,568 of the 13,602 recipes tracked here and 1,585 of the 1,591 Alchemist ones, and 337 recipes nest deeper.

Only 28 of those crystals go into the final step; the other 185 are burned by the intermediates, so the real crystal cost is 45 Ice Shard, 40 Water Shard, 40 Wind Crystal and 4 other kinds.

The chain crosses five disciplines — Alchemist to Lv 60, Carpenter to Lv 54, Goldsmith to Lv 30, Armorer to Lv 27 and Blacksmith to Lv 26 — so no single class can finish it unaided.

All 9 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Mortar has the widest use: 140 recipes call for it, spanning six of the eight crafting classes.